它的成份含﹕有机腐殖质和氮、磷、钾、钙、镁、硫及铁、铜、锌、硼、钼等多种微量元素。
Its composition containing: organic humus and nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and iron, copper, zinc, boron, molybdenum and other trace elements.
文中详细介绍了高铁高钙镁质捣打料理化性能、显微结构、试验情况。
The physicochemical characteristics, micro structure and experimental conditions of high Fe. Ca contents Mg ramming material are introduced in detail.
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